Improvement in loom-shuttles



UNITED STATES PATENT OFFICE.

TILLIAM MURKLAND, OI IiOlYELL, MASSACHUSETTS, ASSIG'NOR TO HIM- SELF AND PRESCO'IT C. GATES, OF SAME PLACE.

IMPROVEMENT IN LOOMSHUTTLES.

Specification forming pari of Letters Patent No'. 147,062, dated Febuary 3, 1874; application tiled OctoberflQ, l 75.

To all whom. t may concern:

Be it known that LWrLLnrn Mirnumxn, of Lowell, in the county otl l\'liddlesex and State of Massachusetts, have invented a new and useful Improvement in NVeavers Shuttles, of which the tbllowing is a full, clear, and exact description,reference being had to the accompanying drawings making part of this specication, in which- Figure l'represents a bottom side view,and Fig. L a central section ot' the rear or spindlecarrying end, of a weavers shuttle embodying my imln'ovement.

This invention relates to, and consists of, a new and useful improvement in that part of a shuttle called the bobbin-eatel1,a11d to that kind known as the pivotcd and rocking or oseillatin g bobbin-catch, and which is caused to catch or engage with the groove in the head of the bobbin by rocking on a pin or pivot passing through the substance of the shuttle, and notby any spring action of the plate.V

This invention has for its object to make the common pivoted and rocking bobbin-catch a yielding catch also, and thereby to allow the bobbin of filling to move forward ateach blow of the forward end of the. shuttle, and to recede or be drawn back as soon as the shuttle ceases its forward motion, thereby saving lnueli-tillin g, which, in the use of the unyielding bobbin-catch, is separated or loosened, or

has its unwinding capacity so impaired as to be unfit' for iilling, and, besides this,saviug many filling bobbins, the heads of which are split or broken by the action of the suddenlyv4 stopping shuttle and the rigid or unyielding bobbin-catch.

In my said invention (l, represents the bobbini-cateh, constructed with a longitudinal slot, and a rising rear end, d, and furnished with a spiral spring,E,and a retaining-mmf, while the shuttle is supplied near the forward end of the bobbin-eatch inortise with a stop or bar, e, as a bearing for the forward end of the spring. The usual tuleruni-pin @passes through the slot b, and this allows the bobbincatch and the bo-bbin to nuove forward or to draws them back after each blow of the for ward end of the shuttle, said spring acting between the bar c secured to the substance of the shuttle andthe ear d rising from the rear end of the bobbin-eatch plate, while the the pin j', projecting forward from the ear, holds this end of the springin position, not only when in action, as before described, but also when the rear end ot' the bobbin-catch is pressed upward to release the catch end al from the groove r/ in the head B of the bobbin. To accommodate the 'forward end of the movable bobbiu-eatch, the wider end D of the slot in the under side of the shuttle is made.

longer, as seen in liig. l, but a narrower catchl would obviate the necessity of changing the slot. rlhe spring E performs the double duty ot' returning the catch and the bobbin when thrown forward, and also of returning the rea-r end of the plate into position when pressed upward or inward to disengage the forward or catch end al from the. groove in the bobbin.

Instead of the pin j" a recess may be made in the face of the ear d, and the rear end of the spring E seated and held in such recess.

I claim as my inventionl. A pivoted rocking bobbin-catch, coustructed as described, with a slot, b, a rear end, d, a retaining device, j', and a spring, E, in combination with a` stop or bar, c, and a pivot pin, e, and with the shuttle, all arranged and operating in the manner and for the purpose specified.

2. In combination with the stop e and the pivoted, slotted, and rocking bobbin-catch, as described, the spring E, performing double duty, in the manner and for the purpose set forth.

Witnesses Jol-IN RCRANE, Janus B. MURKLAND. 

